Callisto

Callisto is a San Francisco-based nonprofit organization that creates technology to combat sexual assault and coercion, support survivors, and advance justice.

Specifically, we create cryptographic websites that make it easier for sexual assault survivors to report and name their assailant and enable the detection of repeat sexual offenders. We also connect survivors to attorneys who advise them on their options to seek justice.

We are funded by earned revenue from partner institutions and by philanthropic supporters, including Google.org, Y Combinator, Greylock Partners, and the Skoll Foundation.

We are a rapidly growing and powerful team, united in the belief that we can create a more safe and just world.